CN201041524Y - Stop and leakage measurement machine for steamer engine vacuum system - Google Patents
Stop and leakage measurement machine for steamer engine vacuum system Download PDFInfo
- Publication number
- CN201041524Y CN201041524Y CNU2007200171335U CN200720017133U CN201041524Y CN 201041524 Y CN201041524 Y CN 201041524Y CN U2007200171335 U CNU2007200171335 U CN U2007200171335U CN 200720017133 U CN200720017133 U CN 200720017133U CN 201041524 Y CN201041524 Y CN 201041524Y
- Authority
- CN
- China
- Prior art keywords
- vacuum system
- halt
- indicating device
- turbine
- checking mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a machine halt leakage detection mechanism of a turbine urgent vacuum system. The machine halt leakage detection mechanism comprises a tube plate arranged inside a condenser and a cooling tube arranged on the tube plate. The utility model is characterized in that at least an unusual condition display or indicating device is additionally arranged at one end of the cooling tube, and the other end without the additional arrangement of the device is sealed with a sealing plug. The display or indicating device has diverse structures and forms, and can be composed of a sealing plug with a through hole and a flexible air bag, and a pressure indicating instrument or a sound and light alarm device or a liquid column indicating device of the prior art can be directly adopted to establish the vacuum system into a negative pressure environment or a positive pressure environment, and which part of the vacuum system is the leakage point is determined through observing the display or indicating device under the environment The machine halt leakage detection mechanism of the turbine urgent vacuum system provided by the utility model has the advantages of simple leakage detection method, convenient operation and high leakage detection accuracy, etc., thereby the utility model can be used not only for the detection of the cooling tube of the condenser, but also for the leakage detection of the other parts of the vacuum system such as valves, etc.
Description
(1) technical field
The utility model relates to a kind of vacuum tightness inspection technology of turbine vacuum system, specifically a kind of to be under the subnormal ambient or positive pressure environment under vacuum system carry out leak checking mechanism.
(2) technical background
The condenser of Thermal Power Station's condensing turbine keeps high vacuum could improve generating efficiency, reduces the generating steam consumption.Defectives such as valve is many because the equipment of turbine vacuum system exists more, flange leakage, valve closing are not tight cause air to enter vacuum system, and vacuum tightness is reduced, and the steam consumption of generating electricity increases.Because prior art steam turbine axle head is steam seal, steam turbine is when stopping vapour shutdown maintenance, steam seal will be temporarily ineffective, air just can enter vacuum system from the steam turbine axle head, and air ejector work can only make vacuum system keep very little vacuum tightness, is difficult to find the leakage point that condenser copper tube, equipment valve etc. are located, if there is leakage point in condenser copper tube, chilled water is mixed with condensate water, water quality is degenerated, gyp; Equipment valve etc. locates to exist leakage point, can make air enter vacuum system, and the vacuum tightness of vacuum system is reduced; As send steam seal, then not only waste steam, and steam can make the steam turbine temperature raise to have increased Turbine Barring Gears cool time.
(3) summary of the invention
Technical assignment of the present utility model is at the deficiencies in the prior art, provides that a kind of mode of leaking hunting is simple, easy to operate, the halt leak checking mechanism of the effective turbine vacuum system that leaks hunting.This leak checking mechanism not only can be in the detection of leaking hunting of vacuum tightness under the negative pressure state to vacuum system, also can be to being in the detection of leaking hunting of vacuum system under the barotropic state.
The technical scheme that its technical matters that solves the utility model adopts is:
The halt leak checking mechanism of turbine vacuum system; be when the condenser of steam turbine need be done vacuum experiment; the manhole cover at condenser two ends is opened; the two ends of the cooling tube that copper product is made spill; and add abnormal conditions at an end of cooling tube at least and show or indicating device, at the other end that is not adding said apparatus with the sealing plug for seal.
Above-mentioned abnormal conditions show or indicating device is the sealing obstruction of a band through hole, are provided with the air bag of a soft body structure in the outside that sealing is stopped up.Because the two ends of cooling tube are sealed, when there was leakage point in cooling tube, deformation can take place in air bag under the effect of air pressure.
Above-mentioned abnormal conditions show or indicating device is a pressure indicating instrument.Because the two ends of cooling tube are sealed, when there was leakage point in cooling tube, the pressure indicating instrument can the deflection indication.
Above-mentioned abnormal conditions show or indicating device is an acoustic-optic alarm.Because the two ends of cooling tube are sealed, when there was leakage point in cooling tube, acoustic-optic alarm can be pointed out in the mode that sound, light are reported to the police.
Above-mentioned abnormal conditions show or indicating device is the fluid column indicating device.Because the two ends of cooling tube are sealed, when there was leakage point in cooling tube, the liquid in the fluid column can flow to low pressure end.
The halt leak checking mechanism of above-mentioned turbine vacuum system; in order to make vacuum system keep condition of high vacuum degree; the rotor at turbine high-pressure axle envelope place is provided with the water-stop chamber; in the both sides of water-stop are respectively equipped with backwater room and outside backwater room; the backwater room of water-stop chamber and its both sides can organize setting more; also can singly organize setting; interior backwater room communicates with condenser by water return pipeline; outer backwater room communicates with water collector by water return pipeline; the water-stop chamber communicates with condensate pump by inlet channel, also is provided with the moisturizing pipeline on the condenser.Softening water by after the moisturizing pipeline adding chemical treatment makes water circulate in whole leak checking mechanism under the effect of condensate pump, to keep the vacuum tightness of vacuum system.
The halt leak checking mechanism of above-mentioned turbine vacuum system also is provided with pressure regulator between its condensate pump and the water-stop chamber.
The halt leak checking mechanism of above-mentioned turbine vacuum system, its vacuum system is also joined with gas injection apparatus, utilizes gas injection apparatus to inject the gas that leaks hunting in vacuum system.
The halt leak checking mechanism of above-mentioned turbine vacuum system, with pipeline that gas injection apparatus links to each other on also be provided with chemical reagent and add device.
The halt leak checking mechanism of a kind of turbine vacuum system of the present utility model compared with prior art, the beneficial effect that is produced is:
1) mode of leaking hunting of this leak checking mechanism is simple, easy to operate;
2) owing to be provided with water-stop chamber and backwater room at turbine high-pressure axle envelope place, so vacuum tightness height of whole vacuum system, be beneficial to the inspection of leaking hunting, make the accuracy of leaking hunting improve, reduce because of the not high generation that causes the omission situation of vacuum tightness to condenser copper tube and equipment valve;
3) vacuum system because and gas injection apparatus join, make vacuum system form malleation, be convenient to other position of vacuum system such as valve etc. are located to carry out Leak Detection.
(4) description of drawings
Accompanying drawing 1 is a theory structure synoptic diagram of the present utility model;
Accompanying drawing 2 is the main TV structure synoptic diagram of tube sheet among Fig. 1;
Accompanying drawing 3 is the water-sealing system structural representation of single casing steam turbine axle envelope;
Accompanying drawing 4 is the water-sealing system structural representation of multi-cylinder turbine axle envelope.
Among the figure, 1, condenser, 2, tube sheet, 3, cooling tube, 4, through hole, 5, sealing stops up, 6, air bag, 7, sealing stops up, 8, pressure indicating instrument, 9, acoustic-optic alarm, 10, the fluid column indicating device, 11, rotor, 12, water-stop chamber, 13, interior backwater room, 14, outer backwater room, 15, water collector, 16, pressure regulator, 17, condensate pump, 18, the moisturizing pipeline, 19, vapor extractor, 20, gas injection apparatus, 21, chemical reagent adds device.
(5) embodiment
Below in conjunction with explaining below the halt leak checking mechanism work of accompanying drawing 1-4 to turbine vacuum system of the present utility model.
Embodiment 1:
The halt leak checking mechanism of turbine vacuum system of the present utility model; comprise and be arranged on the tube sheet 2 in the condenser 1 and be installed in cooling tube 3 on the tube sheet 2; at least the end at cooling tube 3 adds abnormal conditions demonstration or indicating device; this device is that the sealing of a band through hole 4 stops up 5; be provided with the air bag 6 of a soft body structure in the outside of sealing obstruction 5, stop up 7 sealings with sealing at the other end that does not add said apparatus.
Embodiment 2:
The halt leak checking mechanism of turbine vacuum system of the present utility model; comprise and be arranged on the tube sheet 2 in the condenser 1 and be installed in cooling tube 3 on the tube sheet 2; at least the end at cooling tube 3 adds abnormal conditions demonstration or indicating device, and this device device is a pressure indicating instrument 8.
Embodiment 3:
The halt leak checking mechanism of turbine vacuum system of the present utility model; comprise and be arranged on the tube sheet 2 in the condenser 1 and be installed in cooling tube 3 on the tube sheet 2; at least the end at cooling tube 3 adds abnormal conditions demonstration or indicating device, and this device device is an acoustic-optic alarm 9.
Embodiment 4:
The halt leak checking mechanism of turbine vacuum system of the present utility model; comprise and be arranged on the tube sheet 2 in the condenser 1 and be installed in cooling tube 3 on the tube sheet 2; at least the end at cooling tube 3 adds abnormal conditions demonstration or indicating device, and this device device is a fluid column indicating device 10.
Embodiment 5:
The halt leak checking mechanism of turbine vacuum system of the present utility model; comprise and be arranged on the tube sheet 2 in the condenser 1 and be installed in cooling tube 3 on the tube sheet 2; at least the end at cooling tube 3 adds abnormal conditions demonstration or indicating device; this device is chosen any one among the foregoing description 1-4; the rotor 11 at turbine high-pressure axle envelope place is provided with water-stop chamber 12; in the both sides of water-stop chamber 12 are respectively equipped with backwater room 13 and outside backwater room 14; interior backwater room 13 communicates with condenser 1 by water return pipeline; outer backwater room 14 communicates with water collector 15 by water return pipeline; water-stop chamber 12 communicates with pressure regulator 16 and condensate pump 17 successively by inlet channel; also be provided with moisturizing pipeline 18 and vapor extractor 19 on the condenser 1, utilize vapor extractor 19 that whole vacuum system is pumped into negative pressure.
Embodiment 6:
The halt leak checking mechanism of turbine vacuum system of the present utility model; comprise and be arranged on the tube sheet 2 in the condenser 1 and be installed in cooling tube 3 on the tube sheet 2; at least the end at cooling tube 3 adds abnormal conditions demonstration or indicating device; this device is chosen any one among the foregoing description 1-4; the rotor 11 at turbine high-pressure axle envelope place is provided with water-stop chamber 12; in the both sides of water-stop chamber 12 are respectively equipped with backwater room 13 and outside backwater room 14; interior backwater room 13 communicates with condenser 1 by water return pipeline; outer backwater room 14 communicates with water collector 15 by water return pipeline; water-stop chamber 12 communicates with pressure regulator 16 and condensate pump 17 successively by inlet channel; also be provided with moisturizing pipeline 18 on the condenser 1; also be provided with gas injection apparatus 20 on the vacuum system; with pipeline that gas injection apparatus 20 links to each other on also be provided with chemical reagent and add device 21; utilize gas injection apparatus 20 that whole vacuum system is become malleation; chemical reagent adds device 21 and add chemical reagent in vacuum system, is beneficial to Leak Detection.
Claims (9)
1. the halt leak checking mechanism of turbine vacuum system; comprise and be arranged on the tube sheet in the condenser and be installed in cooling tube on the tube sheet; it is characterized in that the end at cooling tube adds abnormal conditions demonstration or indicating device at least, in the sealing plug for seal of the other end of cooling tube.
2. the halt leak checking mechanism of turbine vacuum system according to claim 1 is characterized in that, above-mentioned abnormal conditions show or indicating device is the sealing obstruction of a band through hole, are provided with the air bag of a soft body structure in the outside that sealing is stopped up.
3. the halt leak checking mechanism of turbine vacuum system according to claim 1 is characterized in that, above-mentioned abnormal conditions show or indicating device is a pressure indicating instrument.
4. the halt leak checking mechanism of turbine vacuum system according to claim 1 is characterized in that, above-mentioned abnormal conditions show or indicating device is an acoustic-optic alarm.
5. the halt leak checking mechanism of turbine vacuum system according to claim 1 is characterized in that, above-mentioned abnormal conditions show or indicating device is the fluid column indicating device.
6. the halt leak checking mechanism of turbine vacuum system according to claim 1; it is characterized in that; condenser also communicates with the epitrochanterian interior backwater room that is arranged on turbine high-pressure axle envelope place by water return pipeline; the arranged outside of interior backwater room has the water-stop chamber; the outside of water-stop chamber is provided with outer backwater room again; outer backwater room communicates with water collector by water return pipeline, and the water-stop chamber then communicates with condensate pump by inlet channel, also is provided with the moisturizing pipeline on the condenser.
7. the halt leak checking mechanism of turbine vacuum system according to claim 6 is characterized in that, also is provided with pressure regulator between condensate pump and the water-stop chamber.
8. the halt leak checking mechanism of turbine vacuum system according to claim 1 is characterized in that, vacuum system is also joined with gas injection apparatus.
9. the halt leak checking mechanism of turbine vacuum system according to claim 8 is characterized in that, with pipeline that gas injection apparatus links to each other on also be provided with chemical reagent and add device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200171335U CN201041524Y (en) | 2007-01-08 | 2007-01-08 | Stop and leakage measurement machine for steamer engine vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200171335U CN201041524Y (en) | 2007-01-08 | 2007-01-08 | Stop and leakage measurement machine for steamer engine vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041524Y true CN201041524Y (en) | 2008-03-26 |
Family
ID=39253236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200171335U Expired - Fee Related CN201041524Y (en) | 2007-01-08 | 2007-01-08 | Stop and leakage measurement machine for steamer engine vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201041524Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653236A (en) * | 2015-01-14 | 2015-05-27 | 陕西万方节能科技股份有限公司 | Vacuum system holding method for thermal power plant |
-
2007
- 2007-01-08 CN CNU2007200171335U patent/CN201041524Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653236A (en) * | 2015-01-14 | 2015-05-27 | 陕西万方节能科技股份有限公司 | Vacuum system holding method for thermal power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101408466B (en) | Method and device for detecting leakage of shell type heat exchanger | |
| CN201166599Y (en) | Apparatus for detecting helium leakage of heat exchanger tube sheet weld joint | |
| CN203547804U (en) | Airtight turbine shaft seal system | |
| CN208934999U (en) | Double mechanical seal rotary jet pump of the pressure lower than sealing cavity pressure between sealing | |
| CN201041524Y (en) | Stop and leakage measurement machine for steamer engine vacuum system | |
| CN101221084A (en) | Halt leak checking mechanism of turbine vacuum system | |
| CN202813324U (en) | Heat pipe type vapor generator for nuclear power unit | |
| CN108561192A (en) | A kind of turbine steam seal system and turbine generating system | |
| CN113432034A (en) | Drainage system for cyclic utilization of LNG (liquefied Natural gas) gasification cold source and power plant heat source | |
| CN202177492U (en) | Leakage detecting tool of condenser of turbine | |
| CN210802809U (en) | Nuclear power condenser leakproofness detecting system | |
| CN203412859U (en) | Visible vacuum pumping, oil filling and gas exhausting device | |
| CN202393568U (en) | Leakage detector of Hansen valve | |
| CN102878657A (en) | Negative pressure absorption type refrigerating air conditioning device with double-layer shell | |
| RU2324824C1 (en) | Method of turbine plant vacuum system airtightness monitoring | |
| CN213183286U (en) | Multistage water seal working principle demonstration device for shaft seal heater | |
| CN111624152A (en) | Double-seal mixed gas corrosion test box | |
| CN215176153U (en) | Drainage device for lithium bromide refrigerator | |
| CN217275713U (en) | Sealed gas heating device and low-temperature sealed exhaust vaporization heating system | |
| CN114382558B (en) | Steam seal heater device capable of exhausting steam and control method thereof | |
| CN201082366Y (en) | Vacuum circulating cooling recovering device | |
| CN215524973U (en) | Steam pipeline pressure detection device | |
| CN213160702U (en) | Liquid chlorine gasification device for bleaching powder production | |
| CN219622750U (en) | Steam seal pipeline structure | |
| CN219953462U (en) | Optimize combined cycle unit vacuum system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 |